A reaction plane detector for PHENIX at RHIC

被引：19

作者：

Richardson, E. ^{[1
]}

Akiba, Y. ^{[7
,8
]}

Anderson, N. ^{[1
]}

Bickley, A. A. ^{[3
]}

Chujo, T. ^{[11
]}

Cole, B. A. ^{[4
,5
]}

Esumi, S. ^{[11
]}

Haggerty, J. S. ^{[2
]}

Hanks, J. ^{[4
,5
]}

Hemmick, T. K. ^{[10
]}

Hutchison, M. ^{[1
]}

Ikeda, Y. ^{[11
]}

Inaba, M. ^{[11
]}

Jia, J. ^{[2
,9
]}

Lynch, D. ^{[2
]}

Miake, Y. ^{[11
]}

Mignerey, A. C. ^{[1
]}

Niida, T. ^{[11
]}

O'Brien, E. ^{[2
]}

Pak, R. ^{[2
]}

Shimomura, M. ^{[11
]}

Stankus, P. W. ^{[6
]}

Todoroki, T. ^{[11
]}

Watanabe, K. ^{[11
]}

Wei, R. ^{[9
]}

Xie, W. ^{[8
]}

Zajc, W. A. ^{[4
,5
]}

Zhang, C. ^{[6
]}

机构：

[1] Univ Maryland, College Pk, MD 20742 USA

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] Univ Colorado, Boulder, CO 80309 USA

[4] Nevis Labs, Irvington, NY 10533 USA

[5] Columbia Univ, New York, NY 10027 USA

[6] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[7] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

[8] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[9] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

[10] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[11] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 305, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 636卷 / 01期

关键词：

Scintillator; Paddle; Heavy-ions; Reaction plane; PHENIX; RHIC; QUARK-GLUON PLASMA; COLLISIONS; COLLABORATION; PERSPECTIVE; PHOBOS;

D O I：

10.1016/j.nima.2011.01.034

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A plastic scintillator paddle detector with embedded fiber light guides and photomultiplier tube readout, referred to as the Reaction Plane Detector (RXNP), was designed and installed in the PHENIX experiment prior to the 2007 run of the Relativistic Heavy Ion Collider (RHIC). The RXNP's design is optimized to accurately measure the reaction plane (RP) angle of heavy-ion collisions, where, for mid-central root S-NN = 200 GeV Au + Au collisions, it achieved a 2nd harmonic RP resolution of similar to 0.75, which is a factor of similar to 2 greater than PHENIX's previous capabilities. This improvement was accomplished by locating the RXNP in the central region of the PHENIX experiment, where, due to its large coverage in pseudorapidity (1.0 < vertical bar eta vertical bar < 2.8) and phi (2 pi), it is exposed to the high particle multiplicities needed for an accurate RP measurement. To enhance the observed signal, a 2-cm Pb converter is located between the nominal collision region and the scintillator paddles, allowing neutral particles produced in the heavy-ion collisions to contribute to the signal through conversion electrons. This paper discusses the design, operation and performance of the RXNP during the 2007 RHIC run. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：99 / 107

页数：9

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